Improvement in indicators



Y 2Sheets--Sheet 1. T. S. KEN NA R D; n Indicators. NO 15828]l Paented Dec.291874.

UNTTED STATES THOMAS S. KENNABD, DECEASEI), OF EXETER, NEW HAMPSHIRE; SARAH PATENT OFFICE.

B. KENNARD, EXEOUTRIX, ASSIGNOR TO J. ALBERT CLARKE, OF SAME PLACE.

IMPROVEMENT IN INDICATORS.

Specification forming part of Letters Patent No. 158,281, dated December 29, 1874; application led March 9, 1874.

' To all whom it may concern:

Be it known that I, THOMAS S. KENNARD, of Exeter, in the county of Rockingham and State of New Hampshire, have in vented a new and Improved Indicator; and I do hereby declare that the following is a full, clear, and exact description o f the same, reference being had to the accompanying drawings, formin g a part of this specification, in which- Figures 1 and 3 are, respectively, front and reverse views of the indicator. Fig. 2 is a vertical cross-section on the line x a' ot' Fig. 1; and Fig. 4 isa horizontal section on line z e' of Fig. 3. Fig. 5 is a face view ot' the sliding` plate.

The invention consists in the application of time-indicating wheels and an inscribed slide to a slotted recessed plate, in such a manner that when said slide is in a certain position the device will indicate that the occupant of the otlce is out, and also the time of his return; and when in another position that he is in, the name of the day ofthe week being indicated, and the wheels locked in position in each case.

In the drawing, A is the recessed and slotted plate; A', the slide; B, the wliecl carrying names of the secular days of the week; and B', the wheel inscribed with the hours of the day from l to 12. Said wheels are operated by knobs D D', and symmetrically arranged in the frame A, below the slot a, for the name of the person making use ot' the indicator. The general form ofthe slide A', Fig. 5, is oblong and rectangularbut semicircular notches are formed in the center and corners ot' its upper side, which adapt it to be locked in position by the buttons E E', operated by knobs F F'. The buttons are circular on one On the left ot' the central projection d of slide A' the word In" is inscribed above the word now," and on the right of same the word "Out" occupies a like position with the words In at rIhe frame A is suitably slotted between the wheels to allow reading ot' half the slide at a time.

As shown in Fig. 1, the slide is moved to the left hence, taking the indications ot'wbeels B B' into consideration, the indicator states the day as Tuesday that the occupant is Out," but will be In at 5 oclock, It is evident that by moving the slide to the right the indicator would state the occupant is In now 4 The slide A' has a rib, c, at its ends, which engage the notched rims of wheels B B', when the slide occupies either of the positions above indicated, thus preventing said wheels being turned. tei-mediate position the ribs c will be opposite the axes ot' the respective wheels, and thus allow their rotation for the purpose of indieating a diir'ereut time. A series of corresponding numbers are inscribed or printed on the plate A in a circle around the buttonknobs F F', so that it may be readily determined when the latter have been properly adjusted to release or lock the slide A.

What I claim is- 1. The combination of the notched slide and the slotted buttons, as shown and described.

2. The combination of the slide, having ribs c c, and day and hour wheels, having notched rims, as shown and described.

3. The combination ot' the buttons, conA structed as described, the slide A', having ribs c c, and the day and hour wheels B B', provided with notched rims, to operate as specified.

THOMAS S. KENNABD.

Witnesses:

SEBASTIAN A. BROWN, W. B. MOEEILL.

When the slide is moved to an in- 

